Releasing mechanism for bundling-presses.



N0.- 857,918. PATENTED JUNE 25, 1907. y

. o. P. ANDERSON RELEASING MEGHANISMIEOR BUNDLING PRESSES.

APPLIUATION FILED MAE. 24.1905.

2 EHEETS-SHEET 1.

No. 857,918. PATENTED JUNE 25, 1907. 0. P. ANDERSON.

' RELEASING MECHANISM POR BUNDLING PRESSES.

APPLICATION FILED MAR. 24, 1905.

2 SHEETS-$33M 2.

CARL F. ANDERSON, OF CHICAGO, ILLINOIS.

RELEASING MECHANISM FOR BUNDLING-PRESSES.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed March 24, 1905. Serial No. 251,789.

To aZZ whom it may concern:

Be it known that I, CARL F. ANDERSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Releasing Mechanism forBundling-Presses, of which the following is a specification.

This invention relates to presses for compressing folded signatures,pamphlets, loose leaves, etc. preparatory to tying them in bundles forhandling or storage, and its object is the production of means in such apress for quickly and easily releasing the pressure upon the bundle.

In the accompanying drawings, Figure 1 is a perspective view of abundling press embodying the features of my invention. Fig. 2 is afragmental vertical section through a bundling press embodying thefeatures of my invention, taken on the plane of the axes of the twoprincipal shafts. Fig. 3 is a sectional view taken on dotted line 3 3 ofFig. 2, showing the pawl and the ratchet wheel for preventing rearwardmovement of the plunger-head. Fig. 4 is a view similar to that of Fig.3, but showing the pawl held out of engagement with said ratchet wheel.Fig. 5 is a top plan view of said ratchet wheel and a device for keepingthe pawl out of engagement with the ratchet wheel.

In the drawings, 1 refers to the supporting frame of the machine, saidframe comprising, in this instance, end members 2 and 3, longitudinalbars 4 and 5 connecting the lower portions of said members, andlongitudinal bars 6, 7, 8, and 9 joining the upper portions of the endmembers 2 and 3.

An abutment 10 is rigidly fixed in the upper end of the end member'2 bymeans of bolts 11. A plunger head 12, substantially identical in formand construction with the abutment 10 is slidably mounted u on the bars6, 7, 8, and 9, and is movable ongitudinally thereof by means to belater herein described. Openings 13 extending through the plunger head12 from side to side and parallel with the rods 6, 7, 8, and 9, areadapted to receive a number of signaturesupporting rods 14 (in thisinstance three), which rods extend through said plunger head, one end ofeach of said rods lying Within a screw-threaded opening in the abutment10 alined with each of the openings 13. The opposite ends of said rodsare squared to receive Wrenches for turning them.

The means for moving the plunger head 12 of the press toward and awayfrom its coopcrating fixed abutment 10 comprises a shaft 15 rotatablymounted in bearings 16 on the end member 3. Upon one end of the shaft 15is rotatably (loosely) mounted a handwheel 17, the hub of whichhand-wheel has fixed to it a pinion 18. A shaft 19 supported in bearings20 beneath the sh aft 15 has fixed upon one of its ends a spur gear 21adapted to mesh with the pinion 18, and upon its other end a pinion 22adapted to mesh with a spur gear 23 fixed on the end of the shaft 15opposite to that carrying the hand wheel 17. 24 and 25 are gear casingsfor the gears 18 21 and 22 23, respectively. A rack bar 26 to which theplunger head 1.2 is fixed extends through an opening 27 in the endmember 3.

On the shaft 15 is fixed a pinion 28 adapted to mesh with said rack. Aflanged guide roller 29 rotatably mounted in bearings 30 on the endmember 3 is arranged to hold the rack bar 26 in proper relation to thepinion 28.

To prevent backward movement of the plunger head 12 when a bunch ofsignatures is being compressed, a ratchet wheel 31 is fixed upon theshaft 1.9, with the teeth of which ratchet wheel a pawl 32 pivotallymounted upon the shaft 15,is adapted to engage. The pawl is arranged tobe withdrawn from engagement with the' ratchet wheel 31 by means of ahook 33 also pivot ally mounted upon the shaft 15 and having an upwardlyextending arm 34 carrying a weight 35. A spring clip 36 fixed upon theend member 3 in position to engage the weight is provided to preventre-bounding of the arm 34 when said arm is thrown over its pivotalcenter toward the end member 3. (Fig. 3.)

To insure that'the pawl 32 shall not engage the teeth of the ratchetwheel 31 when the plunger head 12 is being moved away from its abutment10 to release a tied bundle, and at the same time to be ready to holdany compression movement of the plunger upon its next forward movement Imount looselyon the shaft 19 a disk 37 of a diameter equal to that ofthe ratchet wheel 31 and arranged to be held in frictional contact withone side of said ratchet wheel by means of a coiled spring 38 interposedbetween said disk and a collar 39 fixed on said shaft 19. In theperiphery of the disk 37 is formed a notch 40 of sufficient depth toallow thepoint of the pawl 32 when lying in said notch, to engage theteeth of the ratchet said abutment.

wheel 31. Two studs 41 and 42 are fixed on one side of the disk 37 atdiametrically opposite points. The stud 41 is adapted to impinge up onthe bar 7 in the rotation of the disk 37 to stop such rotation when thenotch 40 is in position to receive the point of the pawl, and the otherstud 42 is adapted to engage said bar to stop the rotation oithediskwhenthe notch 40 has been carried out of position to receive thepoint of said pawl.

Assuming that the plunger head 12 is at a convenient distance from theabutment 10 and that the pawl 32 and the hook 33 are in the positionsindicated by dotted lines in Fig. 4, the operation of the press is asfollows: The quantity of folded signatures, books, pamphlets,or the likewhich it is desired to compress and tie into a bundle is placed betweenthe plunger head 12 and the fixed abutment 10, and said plunger headmoved by means of the hand wheel 17 to compress the signatures againstThe rotation of the ratchet wheel 31 during such movement of the plungerhead carries the disk 37 around until the stud 41 strikes against thebar 7, in which position of the disk the point of the pawl 32 ispermitted to drop into the notch 40 and engage the teeth of said ratchetwheel and thus prevent backward rotation thereof. When sufficientpressure has been applied, the operator passes cords or straps about thebundle of signatures and ties them. The bundle is now ready to bereleased. The operator throws the weighted arm 34 into the positionshown infull linesin Fig. 4, and rotates the hand wheel a littledistance in the direction to further compress the bundle inorder to freethe pawl 32 fromthe teeth of the ratchet 31 and release it tov theaction of said weighted arm 34. The hand wheel 17 may now be rotatedrapidly in the direction to move the plunger head away from the tiedbundle. At the beginning of this rotation the ratchet wheel 31oscillates the disk 37 a little distance so that the stud 42 on saiddisk contacts the bar 7. The operator may now throw the arm 34 into theposition shown in dotted lines in Fig. 4 in which the pawl 32 ispermitted to rest upon the periphery of the disk 37 ready to drop intothe notch 40 when said disk is oscillated in a contrary direction. Thetied bundle is now removed from the press, a quantity of loosesignatures put into position to be compressed, and the operationrepeated. Not being obligedto throw the pawl 32 out of engagement withthe ratchet wheel 31, the operator is enabled to use both hands inrotating the hand wheel 17 to release the pressure upon the tied bundleupon the completion of the operation.

I claim as my invention:

1. The combination, with a ratchet wheel, of a locking pawl tending toengage said ratchet wheel to prevent its rotation; means adapted toexert a tendency to move said pawl out of engagement with said ratchetwheel; and means operated upon the rotation of said ratchet wheel toprevent said pawl from engaging said ratchet wheel.

2. The combination, with a ratchet wheel, of a stationarylocking pawltending to engage said ratchet wheel to prevent its rotation; a memberarranged to move with said ratchet wheel, said member being adapted tosupport said pawl upon its periphery and having a notch therein adaptedto permit said pawl to engage said ratchet wheel; and means for limitingthe rotation of said member.

3. The combination, with a ratchet wheel, of a pawl tending to engagesaid ratchet wheel; means adapted to exert a tendency to move said pawlout of engagement with said ratchet wheel; a disk held in frictionalcontact with said ratchet wheel, said disk having a notch in itsperiphery; and two studs on said disk adapted to engage a fixed portionof Shel machine, for limiting the rotation of said is z.

4. The combination, with a ratchet wheel and a rotatable shaft on whichsaid wheel is fixed, of a pawl adapted to engage the teeth of saidwheel, a disk loosely mounted on said shaft, a spring for holding saiddisk in frictional contact with said ratchet wheel, said disk beingadapted to support said pawl out of engagement with said ratchet wheel,and having a notch adapted to receive the point of said pawl when thelatter is in engagement with the ratchet wheel; and means for limitingthe rotation of said disk.

' CARL F. ANDERSON. Witnesses:

L. L. MILLER, GEORGE L. OHINDAI-IL.

